Battery switchover circuit jobs

Filter

My recent searches
Filter by:
Budget
to
to
to
Type
Skills
Languages
    Job State
    19,390 battery switchover circuit jobs found, pricing in USD

    The car runs on 6.4V battery. It is all wheel drive car - all four wheels turn when throttle is pushed to drive forward or backward. There are two motors that allow to achieve this, one is located at the front of the car and the other one is at the back of the car. These two motors work fine and there is no issue with the the forward and backward movement. The problem is that the steering wheel o...

    $20 (Avg Bid)
    $20 Avg Bid
    1 bids

    I have an app that streams video from an Android device to an iOS device via WebRTC. What I am looking to do is to add a RTCDataStream to it to telemeter data from the Android device (like GPS, video parameters, battery parameters, etc). As an expert, I think this should be very straightforward.

    $176 (Avg Bid)
    $176 Avg Bid
    3 bids

    Looking for a graphic designer who can work with a new software called Famous from famous.co. Helpful to know Sketch and Photoshop or some other graphic software where thee are layers to create. If you enjoy working from your home and have high speed Internet and you are ok with flexible work hours and can read and write English or French reasonably well; Est-ce que vous lisez et écrivez ...

    $14 / hr (Avg Bid)
    $14 / hr Avg Bid
    4 bids
    a gps-gsm pcb circuit 6 days left
    VERIFIED

    pease bid only if you are in maharastra (india) circle. i need hardware as well.

    $154 (Avg Bid)
    $154 Avg Bid
    3 bids

    I would like a field deployable data acquisition system (preferably using something simple like arduino) that will record a fluxgate magnetometer for days in the open air. If you want to look it up, this will be used for geophysics, one use will be to be a base magnetometer, which will remove for the magnetic changes due to solar storms and the second will be to record magnetotellurics, which can...

    $457 (Avg Bid)
    $457 Avg Bid
    13 bids
    Touchscreen Countdown Timer 6 days left
    VERIFIED

    I'm working on a prototype for a project and I need to source a circular LCD/OLED (or similar) countdown display timer - see the attached rough sketch. The timer must only countdown days automatically, not hours, minutes or seconds, and be operated by a battery that you would get in a digital wristwatch or car key fob. It needs to be simple and basic in its functionality. If I want to set t...

    $288 (Avg Bid)
    $288 Avg Bid
    13 bids

    To design a 3 kva grid interaction hybrid pure sine wave inverter with PCB, firmware design and microcontroller codes development work. The inverter should have solar, battery bank and grid are the sources.

    $481 (Avg Bid)
    $481 Avg Bid
    8 bids

    Hi, 1. I want a professional engineer to design a battery charging circuit with all the protection circuits (overcurrent, overvoltage, overdischarge, cut-off, shortcircuit, etc). 2. Kindly check the attached file(fig-1), (fig-2). I have different excitation methods for piezo resistive sensor. Which one is stable and long term stability. If you have any other ideas, kindly share it. 3. I would to ...

    $88 (Avg Bid)
    $88 Avg Bid
    6 bids
    Build a PCB 5 days left

    I need a LED matrix PCB done with RGB, it must be controlled by Xbee and Arduino. I have done an initial layout. There is not much work left beside to check the circuit and intrgate the pins of the arduino and xbee as well and check the circuit is complaint. I will need the eagle schematics when done.

    $107 (Avg Bid)
    $107 Avg Bid
    10 bids
    LTspice circuit 5 days left
    VERIFIED

    I need to do an LTspice circuit

    $25 (Avg Bid)
    $25 Avg Bid
    3 bids

    We sell Electrical automation products including, WiFi Circuit breakers; RF Wireless light times; Wireless Water heater Controllers; etc.... We are looking for someone who has solid online experience selling electrical equipment who is able to list our products on various online platform in Canada, USA, North America, Middle East and Africa. The main payment will be commissions of up to 20% of ev...

    $900 (Avg Bid)
    $900 Avg Bid
    1 bids
    ADXL354 MKR1000 5 days left

    The Brief Equipment Mkr1000(Arduino) Ads1256 (Texas instruments) Outcome required Ratiometric analog to digital converter ADS1256 will send SPI protocol data to MKR1000 and can be recorded from a uart connection from the MKR1000 to a PC. The sample rate must be variable but will need to also be able to reach full speed of the ADS1256 which is 30Ksps and will be required for 4 channels of input fro...

    $225 (Avg Bid)
    $225 Avg Bid
    15 bids
    Trophy icon Logo for Next-gen Robotics company 12 days left

    Mobian Dynamics is a new company out of Melbourne, Australia. We are a tech startup looking to bring dynamic automation to industry verticals. We make mundane processes easier through AI and smart electronic control systems, along with an intelligent orchestration layer for complex systems. Work with us to build a logo and branding scheme that shouts "next generation dynamic automation&quo...

    $175 (Avg Bid)
    Guaranteed Sealed Top Contest
    $175
    260 entries

    I'm looking to design a prototype for a smart device that i would like to patent and sell. I first need to develop the device. The device would need to an instrument to either make a liquid measurement and/or take the weight of the over product. The device would also need to report back the battery life. periodically. Each measurement would need to come online and post to an api for data ...

    $51 / hr (Avg Bid)
    $51 / hr Avg Bid
    37 bids

    A variable DC input battery bank 24 v to 400v DC input to constant output 415v, 50hz, 3 phase output grid connecting Inverter of capability 5 kva. The input source suitable for battery bank and or solar of variable input

    $1607 (Avg Bid)
    $1607 Avg Bid
    7 bids

    I have a project involving GPS trackers for elderly. Will like app built to monitor these devices and become an interface for changing parameters

    $1569 (Avg Bid)
    $1569 Avg Bid
    54 bids

    Hi, I need to emulate a crystal oscillator circuit (attached) based on wave digital filter (WDF). Basically we aim to have WDF emulation that match a Spice simulation (e.g. in Cadence). I Already have the circuit simulated in Cadence (the output attached) . Attached, my circuit (Crystal Oscillator) schematic that needs to be mapped to WDF along with its output waveform, you will notice that there ...

    $1115 (Avg Bid)
    $1115 Avg Bid
    11 bids

    I have a machine use for test PCB(Printed Circuit Board). Now, machine is running on old technology in WinXP. I want someone who can develop software for my machine using RPA or python technology.

    $420 (Avg Bid)
    $420 Avg Bid
    6 bids

    PLEASE, for the love of god, read through the description. This is a very specific niche! The client's website is [login to view URL] Feel free to browse through their blog at [login to view URL] to see the kind of topics we generally cover. This is a technical subject so we'd strongly prefer someone with a suitable background. We're hoping you'll be able to research and come...

    $117 (Avg Bid)
    $117 Avg Bid
    10 bids

    The client's website is [login to view URL] Feel free to browse through their blog at [login to view URL] to see the kind of topics we generally cover. This is a technical subject so we'd strongly prefer someone with a suitable background. We're hoping you'll be able to research and come up with title ideas. We're a little limited pay-wise, with the upper limit being 5-6 ...

    $94 (Avg Bid)
    $94 Avg Bid
    12 bids

    Need reliable constant current LED COB and SMD driver circuit + PCB + Finally Manufactured for 100w, 200w, 400w and 600w. I wanted Mechanical Enclosures also designed for those LED. Description of Circuit + PCB + Testing + Manufacture: - You have to design separate PCB's for COB version and SMD Version - COB Version has 100w, 200w, 400w and 600w. - SMD Version has 100w only. - Both COB and S...

    $1375 (Avg Bid)
    $1375 Avg Bid
    13 bids

    Need reliable constant current LED COB and SMD driver circuit + PCB + Finally Manufactured for 100w, 200w, 400w and 600w. I wanted Mechanical Enclosures also designed for those LED. Description of Circuit + PCB + Testing + Manufacture: - You have to design separate PCB's for COB version and SMD Version - COB Version has 100w, 200w, 400w and 600w. - SMD Version has 100w only. - Both COB...

    $906 (Avg Bid)
    Local
    $906 Avg Bid
    10 bids

    Must be Sydney based I'm looking to develop 2 similar projects using a Raspberry Pi and looking for a programmer with experience with h.264 encoding, VLC, RTSP network streaming, Wifi configuration. 1. News Gathering system - RPi running Android Using a number of existing apps to stream HDSDI video over bonded 4G connections. I have this project already working with a Galaxy 8+ but the l...

    $21 / hr (Avg Bid)
    $21 / hr Avg Bid
    7 bids

    Need a circuit for a bicycle tail light. Operated by one push button. Low battery consumption. Led Output max 1A 5 different flashing brightness & speed settings

    $26 (Avg Bid)
    $26 Avg Bid
    12 bids

    I need some changes in already build circuit of device. you have to do circuit level programming and you have to change information.

    $102 (Avg Bid)
    $102 Avg Bid
    2 bids

    Tanks Calibration System System Working: The Tank Calibration Unit constitutes of a Microprocessor to process all the data and simulate commands; powered with rechargeable battery, with minimum 12 hours backup; 2 line LCD to display both Level and Volume simultaneously; Keys (may be 4) to operate / configure it; one relay Output to control the pump; one Wireless module to communicate with Lev...

    $331 (Avg Bid)
    Local
    $331 Avg Bid
    9 bids

    I need an Android app. I would like it designed and built. also i need with it electronic input circuit or use wifi or Bluetooth whichever. no problem. there are 4 switches. pressing one displays a different picture on the tablet

    $166 (Avg Bid)
    $166 Avg Bid
    15 bids
    micro wi-fi camera 2 days left
    VERIFIED

    Hi, we would like to start to produce small cameras. Cameras should have maximum filed of view. They should be with "micro" size and weight. To have battery on board able to run it for up to 4 hours. To have LED lights. To have bluetooth or wi-fi. We think that use of omnivision CameraCubeChip will be ideal.

    $800 (Avg Bid)
    $800 Avg Bid
    10 bids
    PCB design & Prototype 2 days left
    VERIFIED

    I want to design PCB, prototype the board with ESP32+LCD+Wireless charging circuit. Please bid only if you have experienced in these fields. I will accept only the PCB Designer & prototype expert in China.

    $279 (Avg Bid)
    $279 Avg Bid
    15 bids
    search manufacturer 2 days left
    VERIFIED

    I want 3 manufacturing options in China of these measuring stations with unit price for 10 stations with the following features: wifi connection, rechargeable battery for usb and internal storage of information for 10 days.

    $20 (Avg Bid)
    $20 Avg Bid
    3 bids

    I want 3 manufacturing options in China of these measuring stations with unit price for 10 stations with the following features: wifi connection, rechargeable battery for usb and internal storage of information for 10 days.

    $26 (Avg Bid)
    $26 Avg Bid
    4 bids

    We require a video that will showcase our mobile application (it's an application for roadside assistance - towing services, battery boost/replacement, lock out, car wash, fuel delivery etc): I. BUSINESS PROVIDER/PARTNER a. How it will increase their profit in addition to their normal business operations b. Ease of Joining c. Ease of Use II. CUSTOMERS/MOTORIST a. Convenience of having an a...

    $188 (Avg Bid)
    $188 Avg Bid
    45 bids

    I need someone who is well versed with STM32F4 series. I have to program a custom made PCB with an on board STM32F407VGT6 (100 pin package), the details of which will be discussed in personal chat with bidders. A similar type of PCB was programmed before this by my superior so some of the modules are already ready, and 2 others need to be programmed. For example: The ADC needs to work in simulta...

    $235 (Avg Bid)
    $235 Avg Bid
    18 bids
    GPS Server Traccar.org 2 days left
    VERIFIED

    We have a server that is from [login to view URL] and we have made a connection between this server and our loginportal that we are using for our clients to follow gps devices and itts working. There are only small thing that are nog working good like parameters of battery sensor and timezone between the server and loginportal. Only please someone with experience and done this before can reply ...

    $41 / hr (Avg Bid)
    $41 / hr Avg Bid
    25 bids
    Pcb Design 2 days left

    Product is minimum sized portable digital radio , Units to be inculuded are lipo battery (minimum 6 hours lasts ), battery charger , digital radio tea5767 , headset output , minimal chip which you offer (low energy consume is important), volume up , volume down , search up , search down , on/off switch , micro usb input for charge . Headset cable can be used as anten or anten out is pin out, store...

    $17 / hr (Avg Bid)
    $17 / hr Avg Bid
    23 bids

    Want to make circuit with home automation light fr my house

    $379 (Avg Bid)
    $379 Avg Bid
    8 bids

    Want to make circuit with home automation light fr my house

    $374 (Avg Bid)
    $374 Avg Bid
    4 bids

    We make quality battery charger and batteries for the vape industry. Now we need some minority language writers to work for us, such as Spanish, Italian, Russian, German, French and Japanese, etc. We will give you some keywords and the description of the products to you then you write an articles. Of course, pictures are provided. If necessary, we can send you a sample for reference. This is ou...

    $100 (Avg Bid)
    $100 Avg Bid
    18 bids

    I need someone to design a circuit with 4 switches that will display 4 images on a tab when each one is pressed.

    $155 (Avg Bid)
    $155 Avg Bid
    18 bids

    I need to measure AC current passing throw the circuit breaker up to 100 A by using 3 winding on the 3 phase. each winding in one phase. max current in primary is 100 A and max current in secondary is 2 A. I need the following things: 1- what is the turn ratio. 2- how the winding connected with the current sensor ACS712 you can see the data sheet attached. 3- I know how connect the sensor to the m...

    $67 (Avg Bid)
    $67 Avg Bid
    12 bids

    Hello all! I need your help to read data from my MPP-Solar inverter. My goal is to close a relay when battery capacity is under 70% and open back when battery capacity is 100%. The relay is connected with a power generator. I would also like to display some data on an LCD screen My hardware setup is an Arduino Mega connected throw serial1 to a MAX3232 module which is connected to the inverter&#...

    $29 (Avg Bid)
    $29 Avg Bid
    17 bids

    I have a client who sells Tires, batteries, and auto repairs at several locations and every month they do a benefit to support a different charity. They donate $1 of every oil change to the chosen charity for that month. They call IT "WE DRIVE THE CHANGE". They have a section that goes out on their flyer every month in relation to this great cause. They are in need of a LOGO for the ...

    $30 (Avg Bid)
    Guaranteed
    $30
    30 entries
    low wattery 1 day left

    the people care about their battery but they are not care about the water. so i want to show them the earth waters are necessary.

    $25857 (Avg Bid)
    $25857 Avg Bid
    5 bids

    I am looking for someone with a good amount of experience in Java to help me make an existing GUI application run headlessly (i.e. from a terminal window with no need for X11 etc.). The applicaiton is called 'FreeRouting' and it can be downloaded from GitHub here: [login to view URL] It is an application for automatically routing traces on a Printed Circuit Board (PCB). Currently, it c...

    $189 (Avg Bid)
    $189 Avg Bid
    20 bids
    Trophy icon Design flyer for BNA battery 1 day left

    We are a new company in the market and we want to let potential customers know ‘we are existing’. We want to design a flyer to share on the street or put it on the cars of hybrid drivers, where they can see our start price and general branch cars (Toyota, Lexus, Honda). We have a website where you can use everything to make a good flyer. [login to view URL] We want to see on one si...

    $50 (Avg Bid)
    Guaranteed
    $50
    55 entries

    I'm the founder of a startup in Edinburgh. Over the last 3 years I've worked alone developing a multi-speed gearbox for ebikes. For a number of years I have also been developing a design concept: a small, low drag & lightweight 2 seat battery powered EV. The goal: to develop an affordable (£10-15k MSRP) mode of transport which achieves ultra low kWh/km compared to existing EV...

    $12 (Avg Bid)
    $12
    2 entries

    I want to publish a paper in the field of memristors for international Journal with good impact factor. I have attached some data below to make idea clear. Some papers are in chinese language but ignore the stuff and just focus on their abstract.

    $536 (Avg Bid)
    $536 Avg Bid
    12 bids
    Design Circuit and PCB for RF PA 18 hours left
    VERIFIED

    Looking to develop circuit for RF PA chip SKY66291-11 Datasheet is attached in description.

    $468 (Avg Bid)
    $468 Avg Bid
    26 bids

    Our technology allows opening doors using just face recognition. We want to design a small IoT device that can listen to unlock commands from the API, once a person in authenticated, and unlock doors, either through an electrified relay or through a wired connection to an access control panel, which uses Weigand protocol for receiving RFID badge reader data. I am looking to build an IoT device th...

    $450 (Avg Bid)
    $450 Avg Bid
    15 bids
    Schematic design for NRF52 10 hours left
    VERIFIED

    Hi, I am looking for a low-cost hardware design expert to design a circuit(schematic). The device is based on NRF52 with multiple sensors and interfaces for memory and RTC chip. Design a simple PCB board.

    $137 (Avg Bid)
    $137 Avg Bid
    13 bids